AgroMax 6400K T5 LED Grow Light Bulb is a 4-foot, plug-and-play LED replacement for F54T5HO fluorescent lamps. It draws 41 watts per tube and produces 5,200 lumens of full-spectrum white light at 6400K. The lamp measures 45.75 inches long by 0.625 inch in diameter (T5) and contains 160 integrated LEDs with an aluminum heat sink for cooler operation. It installs directly in standard 4′ T5 fixtures without rewiring and is mercury-free with shatter-resistant construction. Rated life is 50,000+ hours. As a single 4′ T5 LED bulb in a typical reflector fixture, expected primary coverage is about 1 ft x 4 ft; secondary coverage extends to roughly 1.5 ft x 5 ft. Ideal for seedlings, clones, and vegetative growth or as low-heat supplemental lighting.